--- Where did you spot the murderer?
--- It was in the cinema we watched Tran formers that I saw him. I can’t remember when.
A. that
B. when
C. where
D. on which
网友回答
A. that
B. when
(答案→)C. where
D. on which
解析：句意：---你在哪里发现凶手的？---是在我们看电影Tran formers的电影院里。我记不得是什么时间了。cinema后跟定语从句, 并在从句中做地点状语。where 相当于in which。故选C。
考点: 考查定语从句的用法。